Outdoor unit of air-conditioning apparatus

Abstract

An outdoor unit of an air-conditioning apparatus in which indoor units are connected, includes: a housing forming an outer casing of the outdoor unit; a terminal block located at a side of the housing; and a conduit plate to be attached to the terminal block. The conduit plate includes: a terminal block cover to be attached to the housing to cover the terminal block, and having an opening portion formed at a lower portion of the terminal block cover; an outer casing cover to be attached to the terminal block cover to cover the opening portion of the terminal block cover, and having an opening portion at a side of the outer casing cover; and a cable connection cover to be attached to the side of the outer casing cover, and having attachment holes for connection of a conduit cable to be connected to the terminal block.

The invention claimed is: 
     
       1. An outdoor unit of an air-conditioning apparatus in which a plurality of indoor units are connected, the outdoor unit comprising:
 a housing forming an outer casing of the outdoor unit; 
 a terminal block located at a side of the housing; and 
 a conduit plate to be attached to the terminal block, 
 wherein 
 the conduit plate includes
 a terminal block cover to be attached to the housing to cover the terminal block, and having an opening portion formed at a lower portion of the terminal block cover, 
 an outer casing cover to be attached to the terminal block cover to cover the opening portion of the terminal block cover, the outer casing cover having an opening portion at a side of the outer casing cover, and 
 a cable connection cover to be attached to the side of the outer casing cover, and having a plurality of attachment holes for connection of conduit cables to be connected to the terminal block. 
 
 
     
     
       2. The outdoor unit of an air-conditioning apparatus of  claim 1 , wherein at the cable connection cover, at least one of the plurality of attachment holes is located at a higher position than a lower end of the terminal block in a height direction. 
     
     
       3. The outdoor unit of an air-conditioning apparatus of  claim 1 , wherein
 a space is provided between a lower end portion of the terminal block cover in a height direction thereof and a lower end portion of the outer casing cover in a height direction thereof, the space being surrounded by the terminal block cover, the outer casing cover, and the side of the housing, and 
 an electric wire of a conduit cable to be connected to the terminal block is partially located in the space. 
 
     
     
       4. The outdoor unit of an air-conditioning apparatus of  claim 1 , wherein
 refrigerant-pipe connection valves are provided at the side of the housing and below the terminal block, and 
 the lower end portion of the outer casing cover is located in a region close to the refrigerant-pipe connection valves.